State profile · Below median Poor share

Indiana bridge safety

According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in Indiana.

19,495
Public bridges
42.2%
Good condition
5.2%
Poor condition

Indiana holds 19,495 public highway bridges (#11 of 52 by inventory) with a 5.22% Poor share (#32 of 52 by Poor share).

That is 5.2% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 21 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.

Inventory: FHWA NBI 2024 · last ETL August 2026

Total Bridges

19,495

Public highway bridges in Indiana

Good Condition

42.2%

8,224 bridges rated 7-9

-7.8pp vs 50% benchmark

Poor Condition

5.2%

1,018 bridges whose lowest applicable component is rated 0-4

-2.3pp vs national avg 7.5%

Indiana vs national bridge condition

Indiana - Good condition share 42.2%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Indiana - Poor-condition share 17.4%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.

Indiana in the national condition pattern

Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.

Inventory size and Poor-condition share are different measures: Indiana has 19,495 bridges and a 5.2% Poor-condition share in the 2024 NBI, rank #21 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold. Scatter plot of 54 data points. 0%10%20%30%40% 0k20k40k60k Public bridges in inventory (thousands) Poor-condition share (%) IN, Public bridges in inventory (thousands): 19.5k · Poor-condition share (%): 5.22%AL, Public bridges in inventory (thousands): 16.2k · Poor-condition share (%): 3.35%AK, Public bridges in inventory (thousands): 1.7k · Poor-condition share (%): 7.89%AZ, Public bridges in inventory (thousands): 8.6k · Poor-condition share (%): 1.15%AR, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 5.43%CA, Public bridges in inventory (thousands): 25.8k · Poor-condition share (%): 5.91%CO, Public bridges in inventory (thousands): 9k · Poor-condition share (%): 4.82%CT, Public bridges in inventory (thousands): 4.4k · Poor-condition share (%): 4.72%DE, Public bridges in inventory (thousands): 0.9k · Poor-condition share (%): 1.26%DC, Public bridges in inventory (thousands): 0.3k · Poor-condition share (%): 1.95%FL, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 2.79%GA, Public bridges in inventory (thousands): 15.1k · Poor-condition share (%): 1.59%GU, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 12.77%HI, Public bridges in inventory (thousands): 1.2k · Poor-condition share (%): 6.53%ID, Public bridges in inventory (thousands): 4.6k · Poor-condition share (%): 4.9%IL, Public bridges in inventory (thousands): 26.9k · Poor-condition share (%): 9.35%IA, Public bridges in inventory (thousands): 23.7k · Poor-condition share (%): 19.16%KS, Public bridges in inventory (thousands): 24.9k · Poor-condition share (%): 5.26%KY, Public bridges in inventory (thousands): 14.5k · Poor-condition share (%): 7.37%LA, Public bridges in inventory (thousands): 12.7k · Poor-condition share (%): 11.48%ME, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 15.41%MD, Public bridges in inventory (thousands): 5.5k · Poor-condition share (%): 4.56%MA, Public bridges in inventory (thousands): 5.3k · Poor-condition share (%): 8.88%MI, Public bridges in inventory (thousands): 11.4k · Poor-condition share (%): 11.27%MN, Public bridges in inventory (thousands): 13.5k · Poor-condition share (%): 4.44%MS, Public bridges in inventory (thousands): 16.7k · Poor-condition share (%): 6.03%MO, Public bridges in inventory (thousands): 24.6k · Poor-condition share (%): 8.95%MT, Public bridges in inventory (thousands): 5.2k · Poor-condition share (%): 6.81%NE, Public bridges in inventory (thousands): 15.4k · Poor-condition share (%): 7.9%NV, Public bridges in inventory (thousands): 2.1k · Poor-condition share (%): 1.14%NH, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 7.51%NJ, Public bridges in inventory (thousands): 6.8k · Poor-condition share (%): 6.01%NM, Public bridges in inventory (thousands): 4k · Poor-condition share (%): 4.51%NY, Public bridges in inventory (thousands): 17.6k · Poor-condition share (%): 9.43%NC, Public bridges in inventory (thousands): 19.2k · Poor-condition share (%): 6.76%ND, Public bridges in inventory (thousands): 4.3k · Poor-condition share (%): 10.98%OH, Public bridges in inventory (thousands): 26.7k · Poor-condition share (%): 4.74%OK, Public bridges in inventory (thousands): 22.9k · Poor-condition share (%): 7.7%OR, Public bridges in inventory (thousands): 8.3k · Poor-condition share (%): 4.61%PA, Public bridges in inventory (thousands): 23.3k · Poor-condition share (%): 12.58%PR, Public bridges in inventory (thousands): 2.4k · Poor-condition share (%): 13.92%RI, Public bridges in inventory (thousands): 0.8k · Poor-condition share (%): 15.2%SC, Public bridges in inventory (thousands): 9.5k · Poor-condition share (%): 6.17%SD, Public bridges in inventory (thousands): 5.9k · Poor-condition share (%): 16.36%TN, Public bridges in inventory (thousands): 20.4k · Poor-condition share (%): 4.41%TX, Public bridges in inventory (thousands): 56.7k · Poor-condition share (%): 1.23%UT, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 2.91%VT, Public bridges in inventory (thousands): 2.9k · Poor-condition share (%): 2.9%VI, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 29.17%VA, Public bridges in inventory (thousands): 14.1k · Poor-condition share (%): 3.39%WA, Public bridges in inventory (thousands): 8.5k · Poor-condition share (%): 5.45%WV, Public bridges in inventory (thousands): 7.3k · Poor-condition share (%): 18.64%WI, Public bridges in inventory (thousands): 14.4k · Poor-condition share (%): 6.52%WY, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 6.51%
Inventory size and Poor-condition share are different measures: Indiana has 19,495 bridges and a 5.2% Poor-condition share in the 2024 NBI, rank #21 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold.

Indiana vs all states by public bridge inventory

Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges

19,495 11th of 54 higher than 43 of 54 states

States and territories, banded by public bridge inventory size

Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source FHWA National Bridge Inventory · 2024

Read the rank neighborhood for Indiana

The highlighted point is Indiana: 19,495 bridges and 5.22% in Poor condition, rank #21 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Indiana on that same Poor-share ordering:

  • Colorado: 8,965 bridges · 4.82% Poor
  • Idaho: 4,616 bridges · 4.90% Poor
  • Indiana: 19,495 bridges · 5.22% Poor
  • Kansas: 24,894 bridges · 5.26% Poor
  • Arkansas: 12,974 bridges · 5.43% Poor

The full national sortable table lives on the rankings page.

Material families in Indiana

Exclusive FHWA material families across all 19,495 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.

Who maintains Indiana’s inventory

State agency holds 31.6% of the 19,495 public highway bridges filed under Indiana in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.

When Indiana’s bridges were built

Pre-1950 construction accounts for 13.0% of the 19,495 bridges with a recorded original year in Indiana. Era bands are orthogonal to the Poor-share ranking above.

Condition Distribution

Indiana42.2%52.6%GoodFairPoor
Bridge inventory deck-condition mix - Indiana (FHWA NBI)

Counties (92)

Adams 194 Allen 613 Bartholomew 269 Benton 151 Blackford 73 Boone 293 Brown 114 Carroll 161 Cass 185 Clark 257 Clay 185 Clinton 210 Crawford 123 Daviess 221 DeKalb 149 Dearborn 145 Decatur 220 Delaware 277 Dubois 220 Elkhart 278 Fayette 100 Floyd 145 Fountain 197 Franklin 159 Fulton 85 Gibson 362 Grant 280 Greene 239 Hamilton 454 Hancock 201 Harrison 127 Hendricks 355 Henry 206 Howard 194 Huntington 187 Jackson 321 Jasper 189 Jay 191 Jefferson 153 Jennings 163 Johnson 230 Knox 290 Kosciusko 152 LaGrange 100 LaPorte 227 Lake 501 Lawrence 165 Madison 301 Marion 958 Marshall 183 Martin 104 Miami 171 Monroe 232 Montgomery 252 Morgan 252 Newton 172 Noble 89 Ohio 41 Orange 137 Owen 150 Parke 200 Perry 151 Pike 172 Porter 277 Posey 208 Pulaski 102 Putnam 290 Randolph 257 Ripley 191 Rush 227 Scott 118 Shelby 247 Spencer 244 St. Joseph 227 Starke 86 Steuben 135 Sullivan 217 Switzerland 62 Tippecanoe 330 Tipton 113 Union 58 Vanderburgh 279 Vermillion 127 Vigo 296 Wabash 192 Warren 135 Warrick 197 Washington 174 Wayne 343 Wells 158 White 214 Whitley 115

Indiana vs nearby ranks

Adjacent states by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Indiana on the same metric.

CO

Colorado

4.82% top marginal rate
Structure
Progressive
Burden @ $100K
$8,965

ID

Idaho

4.90% top marginal rate
Structure
Progressive
Burden @ $100K
$4,616
Selected

IN

Indiana

5.22% top marginal rate
Structure
Progressive
Burden @ $100K
$19,495

KS

Kansas

5.26% top marginal rate
Structure
Progressive
Burden @ $100K
$24,894

AR

Arkansas

5.43% top marginal rate
Structure
Progressive
Burden @ $100K
$12,974

Bridges Needing Most Attention in Indiana

Six lowest-condition bridges in Indiana, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

SR 66 ILL SR 14

Poor

Over: WABASH RIVER & SERVICE R

00.35 W of SR 69, Posey, IN

Built 1930 Load: 0.0 t ADT: 1,065

SERVICE ROAD

Poor

Over: MARIO CREEK

INDIANA WOMEN PRISON, Marion, IN

Built 1920 Load: 0.0 t ADT: 1

PARK ROAD/TRAIL

Poor

Over: UNT MUD/RIVIR LAKES

00.00 CHAIN-O-LAKES ST PK, Noble, IN

Built 1893 Load: 0.0 t

ENTRANCE

Poor

Over: MADISON RR

00.00 MADISON ST HOSPITAL, Jefferson, IN

Built 1930 Load: 0.0 t ADT: 133

BOND CEMETERY ROAD

Poor

Over: NORTH FORK OF SALT CREEK

.2MI S OF GREEN VALLEY RD, Brown, IN

Built 1908 Load: 0.0 t

CR 200S

Poor

Over: BIRCH CREEK

00.70 E of 250 W, Clay, IN

Built 1910 Load: 0.0 t

All Bridges in Indiana

CR 425E

Good

Over: BRANCH MUD CREEK

00.01 S CR 750 N, Pike, IN

Built 1981 Load: 32.7 t ADT: 39

CR 500E

Good

Over: FLAT CREEK

00.09 N CR 175 N, Pike, IN

Built 1982 Load: 32.7 t ADT: 169

CR 500E

Good

Over: FLAT CREEK

00.16 N SR 56, Pike, IN

Built 1981 Load: 32.7 t ADT: 163

CR 250N

Good

Over: FLAT CREEK

00.36 W CR 825 E, Pike, IN

Built 1985 Load: 32.7 t ADT: 188

CR 700E

Good

Over: FLAT CREEK

00.85 S SR 356, Pike, IN

Built 1985 Load: 32.7 t ADT: 52

CR 900E

Good

Over: FLAT CREEK

00.27 S CR 50 S, Pike, IN

Built 1984 Load: 32.7 t ADT: 89

DIVISION RD

Good

Over: FLAT CREEK

00.06 E CR 125 W, Pike, IN

Built 1970 Load: 32.7 t ADT: 108

CR 1200S

Good

Over: ROUGH CREEK

00.09 E CR 150 E, Pike, IN

Built 1982 Load: 32.7 t ADT: 21

CR 1200S

Good

Over: S FORK PATOKA RIVER

00.45 W CR 500 E, Pike, IN

Built 1970 Load: 32.7 t ADT: 24

CR 950S

Good

Over: TRIB S FK PATOKA RIVER

00.38 E CR 400 E, Pike, IN

Built 1982 Load: 32.7 t ADT: 24

CR 725S

Good

Over: ROCK CREEK

00.30 E CR 1000 E, Pike, IN

Built 1995 Load: 32.7 t ADT: 35

CR 1100E

Good

Over: SULPHUR SPRINGS

00.25 S CR 250 S, Pike, IN

Built 1994 Load: 32.7 t ADT: 82

CR 475N

Good

Over: BR MUD CREEK

00.41 W CR 500 E, Pike, IN

Built 1984 Load: 32.7 t ADT: 26

CR 50E

Good

Over: HAT CREEK

00.25 N CR 775 S, Pike, IN

Built 1982 Load: 32.7 t ADT: 53

CR 100S

Good

Over: BRANCH BIG CREEK

00.25 E CR 700 W, Pike, IN

Built 1981 Load: 32.7 t ADT: 355

CR 1100E

Good

Over: LITTLE FLAT CREEK

00.06 S CR 200 N, Pike, IN

Built 1984 Load: 32.7 t ADT: 17

CR 1100E

Good

Over: BRANCH SULPHUR SPRING

00.55 N CR 400 S, Pike, IN

Built 1984 Load: 32.7 t ADT: 82

CR 400S

Good

Over: CROOKED CREEK

00.90 E CR 450 E, Porter, IN

Built 1930 Load: 32.7 t ADT: 270

CR 500E

Good

Over: KANKAKEE RIVER

00.60 S CR 1400 S, Porter, IN

Built 1966 Load: 32.7 t ADT: 380

CR 875N

Good

Over: SQUIRREL CREEK

00.20 E CR 400 W, Porter, IN

Built 2001 Load: 32.7 t ADT: 1,170

WAGNER ROAD

Good

Over: LITTLE CALUMET RIVER

00.40 S US 20, Porter, IN

Built 1968 Load: 32.7 t ADT: 1,680

SHOREWOOD DRIVE

Good

Over: LAKE LOUISE

00.60 S JCT US 30, Porter, IN

Built 1974 Load: 32.7 t ADT: 2,160

CR 475W

Good

Over: CONRAIL NY/ST LOUIS RR

00.10 S JCT SR 130, Porter, IN

Built 2000 Load: 32.7 t ADT: 8,260

CR 600N

Good

Over: CSX RAILROAD

00.10 W CR 500 E, Porter, IN

Built 1996 Load: 32.7 t ADT: 1,480

CRISMAN ROAD

Good

Over: PORTAGE AVENUE

00.10 E WILLOWCREEK ROAD, Porter, IN

Built 1987 Load: 32.7 t ADT: 1,910

CRISMAN ROAD

Good

Over: CSX RAILROAD

00.10 NE PORTAGE AVENUE, Porter, IN

Built 1987 Load: 32.7 t ADT: 1,910

OLD FAITHFUL DRIVE

Good

Over: CORNELL DITCH

00.20 W CR 600W, Porter, IN

Built 2001 Load: 32.7 t ADT: 300

MEADOWBROOK DRIVE

Good

Over: GARDEN TERRACE DITCH

00.20 N 400 NORTH, Porter, IN

Built 2001 Load: 32.7 t ADT: 390

RAIL ROAD

Good

Over: COFFEE CREEK

00.30 E JCT SR 49, Porter, IN

Built 2001 Load: 32.7 t ADT: 1,520

LUTE ROAD

Good

Over: WILLOW CREEK

00.20 E SWANSON ROAD, Porter, IN

Built 2011 Load: 32.7 t ADT: 920

JOSEPH AVENUE

Good

Over: ROBBINS DITCH

00.10 W BLACKSTONE CIRCLE, Porter, IN

Built 2012 Load: 32.7 t ADT: 500

CR 250W

Good

Over: SALT CREEK

01.10 S JCT SR 130, Porter, IN

Built 2011 Load: 32.7 t ADT: 6,850

CR 1100N

Good

Over: COFFEE CREEK

00.30 E SR 49, Porter, IN

Built 2013 Load: 32.7 t ADT: 3,410

CR 600E

Good

Over: LITTLE CALUMET RIVER

00.20 S CR 1350N, Porter, IN

Built 2014 Load: 32.7 t ADT: 200

GATEWAY BOULEVARD

Good

Over: JOHNSON DITCH

00.40 E SR 49, Porter, IN

Built 2015 Load: 32.7 t ADT: 290

GATEWAY BOULEVARD

Good

Over: COFFEE CREEK

00.50 E SR 49, Porter, IN

Built 2015 Load: 32.7 t ADT: 290

PORTER AVENUE

Good

Over: COFFEE CREEK

00.10 E CALUMET RD, Porter, IN

Built 2015 Load: 32.7 t ADT: 5,330

CR 1275N

Good

Over: BRANCH OF KEMPER DITCH

00.30 E 600 E, Porter, IN

Built 2016 Load: 32.7 t ADT: 120

CENTRAL AVENUE

Good

Over: ROBBINS DITCH

00.42 E HAMSTROM ROAD, Porter, IN

Built 2020 Load: 32.7 t ADT: 11,200

CR 725W

Good

Over: BYRD BRANCH CREEK

00.40 N of CR 900 N, Putnam, IN

Built 2000 Load: 32.7 t ADT: 130

CR 375N

Good

Over: OWL CREEK

00.30 E of CR 600 W, Putnam, IN

Built 1991 Load: 32.7 t ADT: 760

CR 50S

Good

Over: DEER CREEK

00.60 E of CR 550 E, Putnam, IN

Built 1999 Load: 32.7 t ADT: 2,570

CR 850S

Good

Over: BIG WALNUT CREEK

00.10 E of CR 650 W, Putnam, IN

Built 1992 Load: 32.7 t ADT: 210

CR 700S

Good

Over: VERMILLION BRANCH CREEK

00.50 W of CR 750 E, Putnam, IN

Built 1975 Load: 32.7 t ADT: 430

LAFAYETTE ST

Good

Over: DOE CREEK

00.20 N of US 231, Putnam, IN

Built 1995 Load: 32.7 t ADT: 740

CR 1025E

Good

Over: MILL CREEK

00.40 S of CR 800 S, Putnam, IN

Built 1997 Load: 32.7 t ADT: 180

CR 200S

Good

Over: CSX RR

00.10 W of JACKSON, Putnam, IN

Built 2002 Load: 32.7 t ADT: 270

CR 625W

Good

Over: BIG WALNUT CREEK

00.30 N of US 40, Putnam, IN

Built 2004 Load: 32.7 t ADT: 520

DUNBAR RD

Good

Over: BRANCH BIG WALNUT CR

01.00 E CR 300 W, Putnam, IN

Built 2015 Load: 32.7 t ADT: 1,430

CR 600N

Good

Over: BUSH CREEK

00.50 MI E of SR 1, Randolph, IN

Built 1987 Load: 32.7 t ADT: 136

Showing 13,351-13,400 of 19,495 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

Understanding Bridge Conditions

How FHWA rates bridge condition on a 0-9 scale.

Check Your Daily Bridges

How to look up bridge condition data for bridges on your route.

Read our methodology — how this data is sourced, computed, and verified.

What to do with this

Use Indiana's inventory picture to drill to a county or a specific span.

  • Browse counties in Indiana and open the highest-Poor shares first. County list
  • See where this state sits among peers on Poor-condition share. State rankings
  • Compare this state with another jurisdiction on the same measures. State compare

NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.

Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Indiana Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.